【摘要】 目的:探讨异常吞咽对牙根吸收的影响。方法:选择11~16岁异常吞咽患者和正常吞咽患者各24名,拍全口曲面断层片,分别测量2组上下颌8个切牙的牙根吸收等级,并经过计算机进行统计学检验。结果:2组的牙根吸收等级差异有统计学意义(P<0.05)。结论:异常吞咽是牙根吸收的高危因素。更多还原

【Abstract】 Objective:To evaluate the degree of the root resorption in tongue thrusting.Methods:24patients with tongue thrusting and 24patients with normal swallowing were selected.All patients were 11-16years old.radiographs taken were used to evaluate the degree of root resorption on upper and lower incisors.χ2 test was used for statistical analysis.Results:The degree of root resorption on incisors with tongue thrusting was significantly different from that with normal swallowing.Conclusion:Tongue thrusting may increased root resorption.更多还原